In the sex chromosomes, females
A) have two X chromosomes, whereas males have one X and one Y chromosome.
B) have one X and one Y chromosome, whereas males have two X chromosomes.
C) and males both have one X and one Y chromosome.
D) have two Y chromosomes, whereas males have one X and one Y chromosome.
A
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Similarity in development of processing speed across diverse tasks in several cultures
A) is most likely due to a decrease in the level of neurons and their connections. B) implies a fundamental change in efficiency of the information-processing system. C) indicates irregular levels of synaptic pruning. D) is unrelated to increased capacity of working memory.